Not a single mom, but I feel like one

I’m depressed. I don’t know if it’s because of my depression or my relationship or both. I see a therapist this month for the first time in years. My son is 6 months old. I was having depression at first and it’s back now. Well it never went away but you know what I’m saying. I don’t cry a lot now I’m just numb to it. Please keep me in your thoughts 😓